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constexpr | message_id () |
| Constructs a message ID for asynchronous messages with normal priority.
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constexpr | message_id (uint64_t value) |
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| message_id (const message_id &)=default |
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message_id & | operator= (const message_id &)=default |
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constexpr uint64_t | category () const noexcept |
| Returns the message category, i.e., one of normal_message_category , upstream_message_category , downstream_message_category , or urgent_message_category .
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constexpr message_id | with_category (uint64_t x) const noexcept |
| Returns a new message ID with given category.
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constexpr bool | is_async () const noexcept |
| Returns whether a message is asynchronous, i.e., neither a request, nor a response, nor a stream message.
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constexpr bool | is_request () const noexcept |
| Returns whether a message is a request.
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constexpr bool | is_response () const noexcept |
| Returns whether a message is a response to a previously send request.
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constexpr bool | is_answered () const noexcept |
| Returns whether a message is tagged as answered by the receiving actor.
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constexpr bool | is_urgent_message () const noexcept |
| Returns whether category() == urgent_message_category .
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constexpr bool | is_normal_message () const noexcept |
| Returns whether category() == normal_message_category .
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constexpr bool | is_stream_message () const noexcept |
| Returns whether category() is an up- or downstream message.
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constexpr bool | is_upstream_message () const noexcept |
| Returns whether category() == upstream_message_category .
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constexpr bool | is_downstream_message () const noexcept |
| Returns whether category() == downstream_message_category .
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constexpr message_id | response_id () const noexcept |
| Returns a response ID for the current request or an asynchronous ID with the same priority as this ID.
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constexpr message_id | request_id () const noexcept |
| Extracts the request number part of this ID.
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constexpr message_id | with_high_priority () const noexcept |
| Returns the same ID but high message priority. More...
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constexpr message_id | with_normal_priority () const noexcept |
| Returns the same ID with normal message priority. More...
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constexpr uint64_t | integer_value () const noexcept |
| Returns the "raw bytes" for this ID.
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constexpr int64_t | compare (const message_id &other) const noexcept |
| Returns a negative value if *this < other , zero if *this == other , and a positive value otherwise.
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void | mark_as_answered () noexcept |
| Sets the flag for marking an incoming message as answered.
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message_id & | operator++ () noexcept |
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static constexpr uint64_t | response_flag_mask = 0x8000000000000000 |
| The first bit flags response messages.
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static constexpr uint64_t | answered_flag_mask = 0x4000000000000000 |
| The second bit flags whether the actor already responded.
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static constexpr uint64_t | category_flag_mask = 0x3000000000000000 |
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static constexpr uint64_t | request_id_mask = 0x0FFFFFFFFFFFFFFF |
| The trailing 60 bits are used for the actual ID.
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static constexpr uint64_t | urgent_message_category = 0 |
| Identifies one-to-one messages with high priority.
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static constexpr uint64_t | normal_message_category = 1 |
| Identifies one-to-one messages with normal priority.
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static constexpr uint64_t | upstream_message_category = 2 |
| Identifies stream messages that flow upstream, e.g., upstream_msg::ack_batch .
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static constexpr uint64_t | downstream_message_category = 3 |
| Identifies stream messages that flow downstream, e.g., downstream_msg::batch .
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static constexpr uint64_t | category_offset = 60 |
| Number of bits trailing the category.
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static constexpr uint64_t | default_async_value = 0x1000000000000000 |
| Default value for asynchronous messages with normal message category.
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(Note that these are not member functions.)
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constexpr message_id | make_message_id (normal_message_priority_constant, uint64_t value) |
| Generates a message_id with given integer value.
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constexpr message_id | make_message_id (high_message_priority_constant, uint64_t value) |
| Generates a message_id with given integer value.
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template<message_priority P = message_priority::normal> |
constexpr message_id | make_message_id (uint64_t value=0) |
| Generates a message_id with given integer value.
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constexpr message_id | make_message_id (message_priority p) |
| Generates a message_id with given priority.
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Bundles various flags along with an optional request ID.